Reverse Polish Notation in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 826th Sciman101 510 192 27 Mar 2025 827th error256 509 51 6 May 2024 828th MeWhenI 🇻🇦 508 367 15 Feb 2022 829th davecame 507 148 18 Sep 2023 830th dokutan 507 193 13 Jan 2025 831st rucin93 🇵🇱 503 79 31 May 2025 832nd dokutan 503 232 26 Aug 2024 833rd MeWhenI 🇻🇦 503 370 14 Feb 2022 834th namcartoon06 502 278 30 Jun 2023 835th HumanoidCPU 501 132 29 Sep 2024 836th adamnielson42 🇺🇸 501 146 2 Jun 2023 837th KatieLG 🇬🇧 501 365 1 Oct 2022 838th eiburns 501 366 28 Feb 2022 839th MeWhenI 🇻🇦 500 117 3 Aug 2024 840th sleepyStick 500 150 15 Jul 2022 840th galloj 🇨🇿 500 150 9 Jan 2023 840th cingulataluke 500 150 27 Aug 2023 840th CutSandstone 500 150 8 Jul 2024 844th msbranicky 499 267 12 Aug 2023 845th jacklynnepenick 497 151 15 Feb 2022 845th ssbhatt4321 497 151 11 Jun 2023 845th thienudomsrirungruang 497 151 16 Apr 2024 845th 051 🇸🇬 497 151 1 Aug 2024 845th mishak-sys 497 151 24 Feb 2025 850th MeWhenI 🇻🇦 497 168 28 May 2023 851st nyoshe 495 234 4 Jul 2023 852nd MeWhenI 🇻🇦 495 303 6 Sep 2022 853rd bstrat 494 70 29 May 2024 854th TheBlupper 493 152 8 Nov 2022 854th yokasuretsu 493 152 14 Jan 2025 856th emplv 🇱🇻 491 170 30 Apr 2024 857th MeWhenI 🇻🇦 491 236 25 Aug 2023 857th keelimeguy 🇺🇸 491 236 5 Nov 2023 859th adamnielson42 🇺🇸 490 58 10 Jan 2024 860th hjcafaroUC 490 153 20 Aug 2022 860th LogicalJoe 490 153 29 Nov 2022 862nd MeWhenI 🇻🇦 490 608 15 Nov 2023 863rd KatieLG-Transpiler 🇬🇧 487 154 4 Nov 2022 863rd stertooy 🇧🇪 487 154 14 Jun 2024 865th retrohun 486 129 6 Nov 2022 865th DialFrost 🇸🇬 486 129 31 May 2025 867th MeWhenI 🇻🇦 486 168 19 Apr 2024 868th TheDrawingCoder-Gamer 485 202 1 Jul 2025 869th AbhilashaTandon 484 155 21 Nov 2022 869th aksyristos 484 155 29 Nov 2022 869th b10011 🇫🇮 484 155 21 Jan 2023 869th Stockoh 🇫🇷 484 155 17 Oct 2024 873rd Frowny 480 72 14 Feb 2022 874th lionbryce 480 204 7 Aug 2024 875th trist224 🇫🇷 478 157 29 Nov 2022 875th TaserTheFox 🇺🇸 478 157 20 Jan 2023 877th pandapawskat 477 243 9 Dec 2022 878th genmeblog 475 169 11 Dec 2023 879th edsrzf 🇳🇿 474 167 29 Jan 2025 880th dokutan 474 281 5 Aug 2024 881st HumanoidCPU 472 155 8 Oct 2024 882nd neihousaigaai 472 159 20 Feb 2022 882nd brimstonetrader 472 159 8 Jan 2024 884th janbehrens 🇩🇪 472 177 6 Jul 2023 885th SiestaGuru 472 388 9 Jan 2023 886th bac0id 470 290 27 Jun 2024 887th strattonwhisler 469 156 6 Jul 2023 888th AdamMorris377 469 160 29 Aug 2024 888th Emutis 🇱🇹 469 160 2 Nov 2024 890th crhenley 🇺🇸 467 248 30 Oct 2023 890th heanyang1 467 248 1 Jun 2025 892nd c0d3-4-F00d 🇩🇪 467 292 21 Feb 2022 893rd Natanaelel 🇸🇪 466 61 10 Jan 2024 894th juliansiebert 🇩🇪 466 124 21 Jul 2022 895th szymex73 🇵🇱 466 249 17 Feb 2024 896th emgordon154 464 250 17 Jul 2024 897th KatieLG 🇬🇧 464 395 5 Jan 2023 898th glesnick 463 162 15 Jul 2022 898th m42km 463 162 3 Feb 2024 898th nilan425 463 162 4 Jul 2025 Prev 826–900 of 1,077 Next